Theca

usgb/ˈθiː.kə/
noun

A sheath or envelope that surrounds certain structures, particularly in biological contexts.

The theca of the ovule protects the developing seed.
Visual representation of "theca" - A sheath or envelope that surrounds certain structures, particularly in biological contexts.

Usage tips

Neutral

thecal sac, thecal wall, thecal tissue

Definition 1 of 2
Visual representation of "theca"
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Context

Be aware that 'theca' is primarily used in scientific contexts, so avoid using it in casual conversation.

Illustration for Context
Many textbooks include examples to illustrate anatomical terms. Make sure to consult those for clarity.
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Precision

In a medical or scientific paper, specify which type of 'theca' you are discussing to prevent ambiguity.

Illustration for Precision
Using specific adjectives such as 'cartilaginous' or 'bony' clarifies the context.
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General Use

Recognize that 'theca' can refer to various sheathing structures in different species or systems. The specific meaning can depend on the biological discipline you are studying.

Illustration for General Use
In botany, 'theca' might refer to a case around spores, while in zoology, it might refer to a protective layer around organs.
Visual representation of the word "Theca"

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